Grrr, this fight
It's Ebrietas, what else needs to be said? :P
Easily the hardest fight in the game. I guess it didn't help that this was my first time killing her in Bloodborne (the Isz chalice and DotC trophies popped up at the end, but they're not visible in this video but I have the trophy screenshots here http://imgur.com/a/HvMv9), so I ended up spending roughly 14 hours on this boss. As soon as I started attempting it, I was at ~32hrs IGT and by the time I got the kill I was at ~46hrs IGT. This boss is a proper fricking brick wall
Not exactly my favourite boss fight in the game (in fact, I think it's kind of boring because there are so few openings to get attacks in) but nonetheless, it's one I have to respect due to its sheer difficulty. Phase 3 becomes simply ridiculous. Also, dat divebomb attack
IMO From nailed the aesthetic of this boss completely. It's so unique compared to everything else in the game, and the arena & music for Ebrietas complement it perfectly. I just wish she wasn't such a pain in the ass to fight
Also, pro tip if you're stuck on this fight. When you get her down for the visceral attack at the end of phase 1, if you charge it up early enough, you can do a charged Hunter Axe spin2win and still have time to get the visceral. I unfortunately didn't show it off in this boss kill though, you'll just have to take my word for it :P

Lower Loran Layer 3
This guy became my arch-nemesis from the moment I got to him after killing Abhorrent Beast; it's unbelievably satisfying to see my SL4 character doing so much damage to him so quickly and finally getting the kill. Praise the flat arcane gems! \[T]/

Since windows 10 ate the recording for my oceiros kill on my main character, I speedran through the game on a fresh save to kill him at sl1 again
My route:
* Start as deprived, kill the sword master and get to dancer
* Use the sword master cheese to kill dancer and unlock lothric castle
* Speedrun through lothric castle and consumed king's garden to pick up 12 titanite chunks
* Spawn at the lothric castle bonfire and farm the nearest knight for 12 large titanite shards (which is bloody hard with a +0 club btw)
* Kill vordt and speedrun through undead settlement + road of sacrifices + farron keep to get dreamchaser's ashes, then use enough consumable souls to buy 22 titanite shards. Upgrade broadsword to +3 raw and knife to regular +9
* Kill abyss watchers and speedrun through catacombs, getting the grave warden's ashes and carthus milkring to be able to use bandit knife
* Kill crystal sage (hilariously easy with +9 knife and carthus rouge, one stamina bar is half of his life bar) and pick up the paladin's ashes. Buy lloyd's shield ring so the insta slam in phase 1 doesn't one shot from a full health bar
* Spend all other consumable souls on carthus rouge. After this it was time for oceiros
Took about 3.5 hours from start to finish
Also a link to the video I uploaded when I first killed Oceiros: https://www.youtube.com/watch?v=FpW1KLW3lcg

Isz Gravestone Layer 3
Pretty satisfied with how this fight went. Ebrietas gave me surprisingly little amounts of trouble in the chalice dungeon; IIRC I killed her in 15 attempts or so, and the first 10 were mostly relearning the dodge timings a bit. I actually managed to clear the entire Isz Gravestone dungeon in one sitting. What an awesome boss fight

Oh man, this boss fight
Good job From, you made a final boss worth a damn. And what a boss it is: fun to fight, varied moveset, incredibly stylish, steeped in great lore, atmospheric and emotional with the best piece of music in the game, and a fitting end to such a fantastic game. I said before that Amygdala was my favourite boss, but Gehrman overtook her as soon as I started fighting him on this character.
Probably the hardest boss in the game, but once I learned to parry his scythe form it wasn't such a big deal. I also got a very easy finish with the fight, as he was just walking at me and he gave me a perfect opportunity to fill him up with QSB's
I'm not going to kill Moon Presence yet, the plan is to wait until all of the DLC has been released and do that content, then kill Moon Presence as the final boss of the run
This run overall was quite a bit harder than Dark Souls SL1, and it's almost entirely because there's no non-scaling weaponry or pyromancy worth a damn in this game (that we can actually wield at SL4). It becomes a lot less of "build a glass cannon, slap on the DWGR and wreck face" and a lot more "play perfectly or get one to two shotted by literally everything in the second half of the game", which I actually really enjoyed. It was a welcome change of pace from having 40 vit on higher leveled characters
Time to start a "slow playthrough", do the chalice dungeon grind, and get the platinum. Doing a strength playthrough with the Kirkhammer, and can't wait to get started :D

Overall not 100% sure about this boss
Phase 2 is so kickass but phase 1, while it looks super cool, is just such a drag to fight. He's hard as hell though so that's something (still not as hard ludwig, laurence or orphan though)
Onto the soul of cinder :D

What a great boss fight. I had a lot of trouble with him at first, but once I realised that visceral attacks were useful even though they do less damage than an R2, it became a lot more manageable. Definitely my second favourite fight, right behind Amygdala

Phases 1 & 2 went super smoothly but since I don't have any real experience with fighting phase 3 head-on, I just cheesed it with bone marrow ash, haha. Looking forward to exploring the fishing hamlet and finding out just how much orphan is going to destroy me :D

Actually really liked this boss fight overall - even though it's a bit disappointing that such an important lore figure as Laurence was relegated to a reskinned Cleric Beast, it was a blast to fight that boss again and the new moveset made it feel fresh again. Also this boss' OST is my favourite in the game, especially the phase 2 and 3 sections :D Looking forward to playing the rest of the dlc on this character in beast form

Cursed Pthumerian Defilement Layer 2
Thankfully this guy wasn't as bad as I thought he'd be. Ended up being waaaaaayyyy easier than Keeper of the Old Lords
Biggest complaint with this fight is that he can sometimes break frames and swipe his head in the same direction twice, in a really glitchy manner. That killed me more than any of his individual attacks did
Also this is one of two attempts where I actually managed to dodge the phase 2 charge attack
Other than that, this fight was more of a marathon than anything. Patience is crucial

Lower Pthumerian Labyrinth Layer 2
I got sick of his chain swing bs and decided to take a... different approach
Don't bother watching this video, it's actually the most boring boss kill video on youtube. 5 and a half minutes of me filling the Undead Giant with bullets